Automatically generating code from an abstract model of a database. The abstract model is derived from a physical model which may be a source such as a legacy database, an entity relationship diagram, or other schema defining the data tables, objects, entities, or relationships etc. of the source. The generated code exhibits several patterns, interfaces and/or features including (a) separation of generated and developer code (b) context patterns (c) response/action patterns (d) language, database interfaces, operating systems and/or (e) user interface patterns.